flutter: Isolate error: Unsupported operation: Operation 'toDartString' not allowed on a 'nullptr'.
flutter: ❌ Command processing failed: type 'UnsupportedError' is not a subtype of type '({String? grammar, String prompt})' in type cast
flutter: ⏱️ Command processing took: 64ms
flutter: ❌ Command failed: Failed to process command: type 'UnsupportedError' is not a subtype of type '({String? grammar, String prompt})' in type cast